# Question about "forcemerge" policy

**URL:** <https://discuss.elastic.co/t/question-about-forcemerge-policy/230050>\
**Category:** Elasticsearch\
**Created:** [April 28, 2020, 12:07am UTC](https://discuss.elastic.co/t/question-about-forcemerge-policy/230050 "2020-04-28T00:07:41Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Hyunsoo\_Shim](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hyunsoo_shim/32/55197_2.png) [@Hyunsoo\_Shim](https://discuss.elastic.co/u/Hyunsoo_Shim)\
**Post date:** [April 28, 2020, 12:07am UTC](https://discuss.elastic.co/t/question-about-forcemerge-policy/230050/1 "2020-04-28T00:07:41Z")

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Hello,  
I want to know the policy of "forcemerge".  
(I am using Elasticsearch 6.5.2 version)

For all I know, the automatic merge is following with TieredMergePolicy of Lucene,  
And some conditions can trigger merge action (e.g., total segments number is over allowed segments number..)

**My question is that "forcemerge" is also followed with TieredMergePolicy ?**  
As it were, if total segments number is under allowed segements number and there is no deleted documents,  
Doesn't "forcemerge" also trigger any merge action?

When I set "forcemerge" for an index, I often couldn't see any merge action for it.  
I am guessing that index doesn't reach the condition to trigger merge..

Could you help me?

Thanks.

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [May 26, 2020, 12:07am UTC](https://discuss.elastic.co/t/question-about-forcemerge-policy/230050/2 "2020-05-26T00:07:43Z")

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